diff options
Diffstat (limited to 'libglusterfs/src/dict.c')
-rw-r--r-- | libglusterfs/src/dict.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/libglusterfs/src/dict.c b/libglusterfs/src/dict.c index 40f575d52d0..2ad1ae1abff 100644 --- a/libglusterfs/src/dict.c +++ b/libglusterfs/src/dict.c @@ -22,6 +22,7 @@ #include <stdlib.h> #include <stdio.h> #include <inttypes.h> +#include <limits.h> #ifndef _CONFIG_H #define _CONFIG_H @@ -1166,6 +1167,35 @@ data_to_uint16 (data_t *data) return strtol (str, NULL, 0); } +uint8_t +data_to_uint8 (data_t *data) +{ + uint32_t value = 0; + + if (!data) { + gf_log_callingfn ("dict", GF_LOG_WARNING, "data is NULL"); + return -1; + } + + char *str = alloca (data->len + 1); + if (!str) + return -1; + + memcpy (str, data->data, data->len); + str[data->len] = '\0'; + + errno = 0; + value = strtol (str, NULL, 0); + + if ((UCHAR_MAX - value) < 0) { + errno = ERANGE; + gf_log_callingfn ("dict", GF_LOG_WARNING, "data conversion overflow detected (%s)", strerror(errno)); + return -1; + } + + return (uint8_t) value; +} + char * data_to_str (data_t *data) { |